- 2 Aug 2021
- Reaction score
All you need to do is clamp 2 pieces of hardwood on both sides of the saw and drill through the wood and saw blade, obvoiusly a good quality hss drill ( a cobalt drill would most likely work) the 2 pieces of wood will support the drill and stop the drill pulling when cutting through thin metal. I made up a jig to drill 8 mm holes in soft brass 0.4mm thick 12mm wide strip, when I had to make 50 square washers to raise the carbide inserts on my spiral planer head (the company had not machined the cutter block right for my planer and it was too much hassle to send it back over the pond. The first try at just using the drill press and as expected it just snatched the brass and tore it up. I made a little jig with maple and clear perspex to hold the brass strips on both sides and drilled through all 50 in no time. I would recommend a drill press as you can control the pressure of the drill. At a pinch you could also use a dremel with a tapered grind stone , and if your'e worried about losing the temper just make a little moat with blu tack or plastacine and use some suitable lubricant.